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    CVE-2021-3962

    A flaw was found in ImageMagick where it did not properly sanitize certain input before using it to invoke convert processes. This flaw allows an attacker to create a specially crafted image that leads to a use-after-free vulnerability when processed by ImageMagick. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

    Published:Nov 15, 2021
    Last Modified:Nov 21, 2024
    EPS:Nov 19, 2021
    EPSS Score:0.00312
    CVSS Score:7.8

    Affected Products

    Vendor
    Imagemagick
    Product
    Imagemagick

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-86425 (CVSS 4.8) — ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the Lay…
    CVE-2026-86424 (CVSS 2) — ImageMagick before 7.1.2-30 and 6.9.13-55 contains a time-of-check-time-of-use (TOCTOU) vulnerability in the v…
    CVE-2026-86422 (CVSS 1) — ImageMagick before 7.1.2-30 contains a time-of-check-time-of-use vulnerability in path policy enforcement on W…
    CVE-2026-86423 (CVSS 4.8) — ImageMagick before 7.1.2-30 and 6.9.x before 6.9.13-55 contains a heap-use-after-free vulnerability in the Get…
    CVE-2026-86421 (CVSS 6.3) — ImageMagick before 7.1.2-30 and 6.9.13-55 contains a memory leak in the MSL image decoder. A crafted MSL image…
    CVE-2026-86420 (CVSS 6.3) — ImageMagick before 7.1.2-30 and 6.9.13-55 fails to properly lower the memory budget when an operation inside O…
    CVE-2026-62946 (CVSS 5.1) — ImageMagick is free and open-source software used for editing and manipulating digital images. In versions pri…
    CVE-2026-62363 (CVSS 5) — ImageMagick is free and open-source software used for editing and manipulating digital images. In versions pri…
    CVE-2026-62343 (CVSS 4.7) — ImageMagick is free and open-source software used for editing and manipulating digital images. In versions pri…
    CVE-2026-64685 (CVSS 5.3) — ImageMagick is free and open-source software used for editing and manipulating digital images. In versions pri…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High